Depends a bunch on the front sight and the load. Using the Shiloh 111 front sight, my 44-77 shooting 480 gr patched bullets 1.50 grease groove takes about 1.60 makes the 1000 yd targets at Raton,Byers and Alliance. So with that would make an MVA midrange viable , but for my 45-70 it would barely make it because most of the time it takes around 1.90 with patched and 200 with greasers.

Thinking about purchasing a new MVA sight. Rifle is, will be 45-90, 30 inch barrel. Don't recognize the front sight. Looks low to me. Might change the front sight too. Rifle has a long range sight on it now. Think I'll get the MR MVA Soule sight for silhouettes. Can switch to the LR sight when shooting LR. Would prefer a MR, if it will work.

If you shoot something like the money bullet there's a pretty decent chance that midrange sight will get to 1000 with a bit of room to spare, but with the postel and "creedmoor" bullets it might not geterdun... Only one way to find out

Brent you are absolutely right, there is nothing magical about the money bullet, but it does shoot with a few minutes less elevation, and a few less when the wind picksup, and if a person is wanting a short sight staff to work best then it is advisable to take the bullet proven to use less elevation.
But as in all things shooting a person needs to see what does and doesn't work for them by trial and error.

Well all I can do is report what my rifles tell me. Usually about 10 minutes less elevation for the patched bullets, and about half the windage, and the "money" bullet style will be a few minutes less in elevation under that.. But that's gathered info from a lot of rounds down range with both slicks and greasers shot during the same range session, for practical experience and comparison.
And gathered from that hands on experience if I was in Joe's position looking to make a midrange sight work at 1000 yds, I'm going to have me a money bullet mould and a handful of 16-1 alloy..

Other than it shoots about 20 MOA flatter than a Paul Jones Creedmoor from the 1K-line. "Magic" implies that a phenomena is unexplainable. Heck, the Money Bullet performance has been explained over, and over, and over again, you not listening??? Here's a hint: nose design and grease-groove design. I'm not the only one that's shown that to be; that is, the Money Bullet slips through the air with greatest of ease. Your shooting buddy can probably support my assertion, no? IIRC his GG'less bullets, of my design (I know that herts, megaherts, no???) shot 25 MOA flatter than his 540 PJ Creedmoor bullet from the 1K-line. Come on now, fess up dude.